Julea, by all means check the heuristic option.
FYI the turning symbol has been replaced by a small pop up screen that tells you when it is downloading and when you are sending.
however the file has to be more that just a reply to an email for you to actually see it.
suggestion, using OE send a photo using the 'insert file' function.
send it if neccessary to your hotmail or yahoo address.
watch the bottom right of your screen.
you will see a little oblong grey screen appear momentarily giving details.
if you want to see the incoming, send a letter to a whole lot of ppl and ask them to reply asap.
if they all do it together creating a fair sized download, you will see the scanner at work.
or go to anywebsite in your browser, copy the address, open an email from the browser bar, paste, address it and send.
you will now see the scanner at work.
i did not reconfigure the scanner whan the revised email scanner was introduced a few weeks ago, because AVG has only changed the manner in which the email scanner is displayed, from an icon that went in a circle to a little pop up screen.
maybe the proggies at AVG got a little dizzy watching it?